Support for the sound-boxes of talking-machines.



H. SHEBLE L T. KRAENIER. SUPPORT FOR THE SOUND BOXES OIF TALKiNG MACHINES.

APPLlcATloN FILED 1uLY1,1916.

1,280956@ Patented 005. 1, 191s.

@y fafa AWGN-Y E@ 5 d3 intended to insure To e257/ whom t may concern.:

yBoxes ci' Talking-Machines,

nonnen arianne AND THOMAS xnnnmnn, or' yHILAJoELPHIA, PENNSYLVANIA, nssrenons To DOMESTIC TALKING MACHINE CORPORATION, OF PHILADEL- rnin, rnNNsxLvnNIA, CORPORATION or rnNNsrLvANIa.-

surnom: non Tnn SOUND-BOXES oFTALING-Mnorrmns.

Be it known that we, HORACE SHE-BLE and Ttienne ltnnnnrnn, both citizens of the' United States, residing in Philadelphia,A

have invented certain Im- Supports for the vSoundof which the ennsylvania, provo-,ments in following is a specification:

The object of our inventionis to simple and eective means where proyide y the sound box of a phonograph instrument can be so mounted upon the tone arm as to be readily changed from position for usefin ,connection with .records or' wave type to position for use in connection with records ot' the Vertical cut or hill-andvalley type,..the sound box when in either position being so locked to the tone arm as to prevent displacement of the soundl box from its proper relation to the record.

rlhis object we attain in the manner here'- inatter set forth, reference being had to accompanying drawings, in which- Figure l is a side elevation of thev sound box of a phonograph and part ofthe tone erin employed in connection therewith, illusi trating our invention and showing the parts the in position for use in connection with a record of the lateral wave type;

Fig.. 2 is al lside elevation showing the sound box and tone arm in position for use in connection with a record of the 'vertical cut or bill-and-valley type;

Fig. 3 is a t ansverse section on the line 3-3, Fig. i;

vEig. e is a H, Fig. v2;

Fig. 5 is a perspective vierr of that member ot the tone arni which vengages with the sound b ox member; and

Figs. 6 and 7 are horizontal sectional views in di'erent positions of sound box and tone arm members illustrating a moditransverse section on the line iication oi our invention. e5 Referring in the first instance to the conf struction ,shown inFigs. 1 to 5 of the drawing, l represents the sound box casing and 2 part of the tone arm upon the end of which s saidvsound box is mounted.` Both of these pecicetionjof Letters Patent. Apsntibn med. Ju1y 7, 191e. "serial Nt. 107,936.,

me lateral-v ing -tom of the pocket 8 but is partially c'ut retained caen-191e.

'sound box on the; tone arm either of the 4two positions requirehithe ready shifting of the sound box from' one [position 'to `the other, 'and its jacciate locationjn either position.

`In the device shown in liigs. .1 tot).y that- -end 'of the tone arm 2 which is adjacent to 'the sound box 1 is lprovided with'fa. tubular f 'bead 5 having a tubular angel projectin.

therefrom into the end of thefton'e' arm an v suitably secured within the latter.v I Pr0jeot-- projecting arm of said elbow fits snugly into a pocket 8 either formed in one ldly secured thereto 1n any available manner;

The lower end of the downwardly projectarm-of the elbow? extends to the botawayhas' lshown in'Fig. 5, so as to present but two s1desf9-9 at right angles to one 'another, and, as shown 111 Fig, 3, that portion of the pocket 8 which corresponds to this -cut away portion of the elbow 7 communi- 'Oates through'a' curved neck 10 with aperture in, the back ,of thet sound box the sound waves, pass, and,

the

through which by way of said curved neck and the elbow 7 are directed to the tone arm2.

. Whenr the sound box is adjusted for use in on the back of the sound box andff iece therewith or rig-1 :5.5? ing downwardly`l and forwardly from-the "f f 'heafd is ahollowelbow I preferably `ofielctanl ular cross section and the downwardlyv connection with a lateral wave grppye, it' i occupies a'plane. parallel with tha/t'dfthe tone arm, and lies alongside of the elbow 7, as shown in Figs. 1 and 3, but when the sound box is to operate in connection with a record of the hill-and-valley type it occuies a forwardlyl inclined plane substantially at right angles to the axis of the tone arm 2, and lies along the outer face 'of the elbow 7, as shown in Figs. 2 and 4c. The sound box can be readily changed from one position to the other by simply slipping the pocket 8 from the elbow 7 turning theI sound box one-quarter way around and reapplying the pocket yto'tlu' elbow in the new position.

By preference, the 'dbox, after being adjusted to the proper `iertical position, is secured in such position in any suitable wah as for instance by means: of a set screw 11 engaging a threaded boss on the back of the poeketS and bearing against the rear face of the elbow 7, as shown n Fig. 2:

In the construction shown 1n Figs. l to 4;

the pocket Sand elbow. 7 occupy a position has grooved ribs la in planes at right I other when the sound box is in the other poangles to one another, one of these ribs engaglng the lug 12a when the sound box 1s 1n one position, as shown 1n Fig. 6, and the sition, as shown in Fig. 7

We claim:- l 1 The combination, in a phonograph instrument, of a tone .arm having at the end an elbow member with downwardly proj ecting arm with a sound box having a member Lesoea in engagement with said downwardly pro-y jecting arm, said engaging members having a cross sectional form which prevents rotation of one in respect to the other until they have been disengaged lengthwise.

. 2. The combination, in a phonograph instrument, of a tone arm having at the end an elbow member with downwardly projecting arm of rectangular cross section, with a sound box having a member with rectangular walls fitted to said downwardly projecting arm of said elbow member whereby said parts are retained in non-rotatable engage` ment until they have been disengaged lengthwise.

In testimony whereof, we have signed our names to this specification, in the presence of two subscribing witnesses.

HRACE SHEBLE. THOMAS KRAEMER. 1 Witnesses:

HARRY L. SMITH, KATE A. BEADLE. 

